Method readMemory

src/monitoring.ts:146–166

()

  }

  protected async readMemory(): Promise<number | null> {
    let currentContent: string;
    let maxContent: string;
    try {
      [currentContent, maxContent] = await Promise.all([
        readWithTimeout('/sys/fs/cgroup/memory.current', this.readFile),
        readWithTimeout('/sys/fs/cgroup/memory.max', this.readFile),
      ]);
    } catch (err) {
      this.logOnce('memory-read', err);
      return null;
    }

    const current = Number(currentContent.trim());
    const max = parseMemoryMax(maxContent);
    if (!Number.isFinite(current) || max === null || max <= 0) {
      this.logOnce('memory-parse', new Error('cgroup v2 memory parse failed'));
      return null;
    }
    return current / max;
  }

  protected logOnce(category: string, err: unknown) {
    if (this.loggedFailure.has(category)) return;